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/*
* include/asm-sh/cpu-sh4/sq.h
*
* Copyright (C) 2001, 2002, 2003 Paul Mundt
* Copyright (C) 2001, 2002 M. R. Brown
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef __ASM_CPU_SH4_SQ_H
#define __ASM_CPU_SH4_SQ_H
#include <asm/addrspace.h>
#include <asm/page.h>
/*
* Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
* mapped to any physical address space. Since data is written (and aligned)
* to 32-byte boundaries, we need to be sure that all allocations are aligned.
*/
#define SQ_SIZE 32
#define SQ_ALIGN_MASK (~(SQ_SIZE - 1))
#define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
#define SQ_QACR0 (P4SEG_REG_BASE + 0x38)
#define SQ_QACR1 (P4SEG_REG_BASE + 0x3c)
#define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000)
/* arch/sh/kernel/cpu/sh4/sq.c */
unsigned long sq_remap(unsigned long phys, unsigned int size,
const char *name, pgprot_t prot);
void sq_unmap(unsigned long vaddr);
void sq_flush_range(unsigned long start, unsigned int len);
#endif /* __ASM_CPU_SH4_SQ_H */
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